Re: Resume -> higher power drain?

[Nils Faerber <nils.faerber-t93Ne7XHvje5bSeCtf/tX7NAH6kLmebB@public.gmane.org>]

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Pavel Machek wrote:
> Hi!

Hi!

>>Before suspend I usually see a power consumption of about 16W including
>>WLAN, which is nicely low.
>>But strangely after resume from either S3 or S4 I have see a power
>>consumption of 19W+. This means ~3W more or in other words, roughly 20%
>>less runtime.
>>This is pretty annoying - not a real show-stoppper but it would be nicer
>>without ;)
>>
>>I have no idea how to diagnose this. My first guess is that some devices
>>are not resumed correctly but I have no real idea how for example gather
>>device states before and after suspend, or other means to diagnose this.
>>
>>So, if anyone has an idea how I can diagnose this and help this issue to
>>be solved, let me know. Or is there already a solution floating around?
> 
> Is cpufreq working correctly after resume?

As to all I can observe, yes.
I have powernowd running and it nicely changes frequency up and down and
changes show up in /proc/cpuinfo accordingly (as well as in gkrellm's
cpu frequency monitor).
So I guess, yes, it works.

Any other ideas what to check for?

> 									Pavel
CU
  nils faerber

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